Furious client of Dotsure

Currently becoming an ex client of dotsure , final got guts to move on after fours years ,I am just tired of negotiating my premiums every now and then. I do not even understand why car insurance should increase because a car loses its value as it goes older. Worse part I never even had accidents claims with them. When told them I do not afford the latest premium, they just told me thats the best they can give me. Imagine after all these years with no claim and no late premiums. This is not on